Device for reduction of exhaust gas and fuel economy for an internal-combustion engine

ABSTRACT

The present invention provides a device for reduction of exhaust gas and fuel economy which comprises a pair of diffusion fans ( 17, 18 ), a plurality of permanent magnets ( 8, 9, 11, 12 ) and metallic balls ( 13, 15 ) to cause the complete combustion of the fuel by its repeated diffusion and turning into particulates. According to the present invention, by complete combustion of the fuel, fuel economy and power otuput of an engine can be significantly enhanced and the exhaust gas can be considerably reduced.

FIELD OF THE INVENTION

The present invention relates to a device for reduction of exhaust gasand fuel economy for an internal-combustion engine. More particularly,the present invention relates to a device for reduction of exhaust gasand fuel economy, which is mounted on a fuel supply line of aninternal-combustion engine to compress and diffuse fuel and also to makemolecules of the fuel particulates, thus resulting in completecombustion of the fuel.

BACKGROUND OF THE INVENTION

Generally, fuel-air mixture is supplied to an internal combustion engineof vehicles such as automobiles and ships, and it has been required thatthe mixture be precisely controlled to satisfy the needs of reduction ofexhaust gas, fuel economy, and the increase of power output.

A fuel injector applied to an internal-combustion engine electricallydetects the amount of air intake and then injects fuel depending on thedetected amount of air intake and conditions of operation of the engine.For this purpose, the fuel injector includes a control unit.

The injector injects fuel into an intake manifold of each cylinderaccording to signals received from the control unit, and comprisessolenoid coil, a plunger and a needle valve. When current flows into thesolenoid coil, the plunger is drawn and the needle valve integrallyformed with the plunger is pulled such that an injecting nozzle isopened to inject the fuel.

The amount of the injected fuel depends on the time when the needlevalve is open, i.e., the time during which current flows in the solenoidcoil.

An electric circuit which controls the injector is largely divided intoa voltage controlled circuit and a current controlled circuit, dependingon whether a resistor is used.

In the meantime, a fuel economizer which raises swirl of the fuelinjected from the injector is mounted on an inlet portion of the engine,and various forms of the fuel economizer have been known.

The fuel injected from the injector raises swirl in a combustion chamberwhile passing through the fuel economizer, and so-called “lean burn”which means that mixture ratio, in other words the fuel-air mixturebecomes diluted is caused in the vicinity of an ignition plug, andaccordingly the increase of the power output and the fuel economyeffects can be achieved by the complete combustion.

However, although such a conventional fuel economizer caused the fueleconomy effect due to the complete combustion and the simultaneousexplosive power stroke resulted from the lean burn, since the swirl wasnot so strong and could not change the nature of the fuel itself, thefuel economy effect could not be obtained as much as expected.

SUMMARY OF THE INVENTION

The present invention substantially obviates one or more of the problemsencountered due to limitations and disadvantages of the prior art.

The object of the present invention is to provide a device for reductionof exhaust gas and fuel economy for an engine, which comprises a pair ofdiffusion fans, a plurality of permanent magnets and metallic balls tocause the complete combustion of the fuel by its repeated diffusion andturning into particulates.

Another object of the present invention is to provide a device forreduction of exhaust gas and fuel economy, which can reduce the amountof exhaust gas and simultaneously improve the power output of the engineby the complete combustion of fuel.

To achieve these objects and other advantages of the present invention,the device for reduction of exhaust gas and fuel economy according tothe present invention comprises:

-   -   an inlet housing connected to a fuel pipe of a fuel tank; a        first permanent magnet fitted in the inlet housing and having a        hole in the center thereof; an outlet housing coupled with the        inlet housing by coupling means at one end and connected to a        fuel pipe to an engine at the other end; a second permanent        magnet fitted in the outlet housing to have the same pole        opposing the first permanent magnet and having a hole in the        center thereof; a partition located between the housings to        separate them and having a hole for passing the fuel in the        central thereof; a third permanent magnet mounted on one side of        the partition and having a hole in the center thereof; a fourth        permanent magnet mounted on the other side of the partition and        having a hole in the center thereof; a first ball inserted in        the hole of the fourth permanent magnet and moving back and        forth to turn the fuel into particulates; a sleeve mounted on        the other side of the partition and having a hole for passing        the fuel in the center thereof; a second ball inserted in the        hole for passing the fuel of the sleeve and moving back and        forth by magnetic force of the fourth permanent magnet, to turn        the fuel into particulates; a cap mounted on one side of the        sleeve and having a hole for passing the fuel in the center        thereof and a plurality of fuel supply holes in its periphery to        supply the fuel to a combustion chamber when the hole for        passing the fuel of the sleeve is opened by stepping on an        accelerator; a first diffusion fan mounted in the inlet housing        to diffuse the fuel; and a second diffusion fan mounted in the        outlet housing to further diffuse the fuel.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are included to provide a furtherunderstanding of the invention and are incorporated in and constitute apart of this specification, illustrate an embodiment of the inventionand together with the description serve to explain the principles of theinvention, wherein:

FIG. 1 is a disassembled perspective view of the device according to thepresent invention.

FIGS. 2 a and 2 b are vertical sectional views of FIG. 1 in an assembledstate, wherein FIG. 2 a shows the state of the device according to thepresent invention without stepping on an accelerator, and FIG. 2 b showsthe state with stepping on the accelerator.

FIG. 3 is a sectional view along the line A-A in FIG. 2 a.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

According to the present invention, the device for reduction of exhaustgas and fuel economy comprises:

-   -   an inlet housing (1) connected to a fuel pipe (2) of a fuel        tank; a first permanent magnet (8) fitted in the inlet housing        (1) and having a hole (8 a) in the center thereof; an outlet        housing (3) coupled with the inlet housing (1) by coupling means        at one end and connected to a fuel pipe (4) to an engine at the        other end; a second permanent magnet (9) fitted in the outlet        housing (3) to have the same pole opposing the first permanent        magnet (8) and having a hole (9 a) in the center thereof; a        partition (10) located between the housings (1 and 3) to        separate them and having a hole for passing the fuel (10 a) in        the central thereof; a third permanent magnet (11) mounted on        one side of the partition (10) and having a hole (11 a) in the        center thereof; a fourth permanent magnet (12) mounted on the        other side of the partition (10) and having a hole (12 a) in the        center thereof; a first ball (13) inserted in the hole (12 a) of        the fourth permanent magnet (12) and moving back and forth to        turn the fuel into particulates; a sleeve (14) mounted on the        other side of the partition (10) and having a hole for passing        the fuel (14 a) in the center thereof; a second ball (15)        inserted in the hole for passing the fuel (14 a) of the sleeve        (14) and moving back and forth by magnetic force of the fourth        permanent magnet (12) to turn the fuel into particulates; a cap        (16) mounted on one side of the sleeve (14) and having a hole        for passing the fuel (16 a) in the center thereof and a        plurality of fuel supply holes (16 b) in its periphery to supply        the fuel to a combustion chamber when the hole for passing the        fuel (14 a) of the sleeve (14) is opened by stepping on an        accelerator; a first diffusion fan (17) mounted in the inlet        housing (1) to diffuse the fuel; and a second diffusion fan (18)        mounted in the outlet housing (3) to further diffuse the fuel.

More specifically, the fuel pipe (2) of the fuel tank is connected tothe inlet housing (1), and the inlet housing (1) is coupled with one endof the outlet housing (3) by coupling means, which in turn is connectedto the fuel pipe (4) of the engine at the other end thereof. To connecteach of the fuel pipes (2 and 4) with each of the corresponding housings(1 and 3), a nipple (5 or 6) can be formed integrally with the housing(1 or 3) or can be formed separately from the housing (1 or 3) to becoupled by screw.

According to an embodiment of the present invention, in order to connectthe housings (1 and 3), a male screw (1 a) and a female screw (3 a) areused as the coupling means, and an O-ring (7) is inserted in the site ofcoupling the housings (1 and 3) to secure tightness.

The first permanent magnet (8) is fitted into the inlet housing (1) andhas the hole (8 a) at the center thereof, and the second permanentmagnet (9) is fitted into the outlet housing (3) and also has the hole(9 a) in the center thereof. The second permanent magnet (9) is arrangedin the outlet housing (3) such that its one pole may have the samepolarity as the opposing pole of the first permanent magnet (8), asshown in FIGS. 2 a and 2 b.

The partition (10) is placed between the two housings (1 and 3) todivide the inside of the housings (1 and 3) and includes the hole forpassing the fuel (10 a) formed in the center thereof.

Also, on one side of the partition (10) into which the fuel enters, thethird permanent magnet (11) having the hole (11 a) in the center thereofis arranged in such a manner that its one pole may have the samepolarity as an opposing pole of the first permanent magnet (8). On theother side of the partition (10) from which the fuel goes out, thefourth permanent magnet (12) having the hole (12 a) in the centerthereof is provided in such a manner that its one pole may have the samepolarity as an opposing pole of the second permanent magnet (9).

The first ball (13) made of metallic material (magnetic material) isinserted into the hole (12 a) of the fourth permanent magnet (12) tokeep a predetermined interval (t) with the hole (12 a). The first ball(13) is to supply the fuel of a predetermined quantity to the combustionchamber by turning the fuel into particulates. It is preferable that theinterval (t) is about 0.05 to 1.0 mm.

If the interval is less than about 0.05 mm, the fuel cannot besufficiently supplied, so that the fuel pump will be overloaded andimpaired. To the contrary, if the interval is more than about 1.0 mm,turning of the fuel into particulates will be limited, and it willresult in low efficiency.

Preferably, gauss (A) of the fourth permanent magnet (12) should be setto have larger gauss than the third permanent magnet (11). This is tomaintain the first ball (13) inside the hole (12 a).

For this purpose, according to the embodiment of the present invention,the fourth permanent magnet (12) is composed of two permanent magnetshaving the same gauss. However, the invention is not necessarily limitedto the embodiment.

This is because, although the first ball (13) had been placed in thehole (11 a) of the third permanent magnet (11) before starting anengine, when the fuel pump is driven by starting the engine, the firstball (13) moves towards the hole (12 a) of the fourth permanent magnet(12) by the pumping force of the fuel.

One end of the sleeve (14) having the hole for passing the fuel (14 a)in the center thereof is coupled with the other end of the partition(10) by screw. Inside the hole for passing the fuel (14 a) of the sleeve(14), the second ball (15) is provided. The second ball (15) moves backand forth by the magnetic force of the fourth permanent magnet (12) toopen and close the hole for passing the fuel (14 a). The other end ofthe sleeve (14) is coupled with the cap (16) by screw. The cap (16)includes the hole for passing the fuel (16 a) in the center thereof anda plurality of fuel supply holes (16 b) in the periphery thereof.

As described above, when the first ball (13) made of metallic materialis arranged in the hole (12 a) of the fourth permanent magnet (12), themagnetic force flowing in the hole (12 a) keeps the first ball (13) at apredetermined interval from the hole (12 a).

In addition, inside the inlet housing (1), the first diffusion fan (17)is provided to diffuse the fuel injected by the driving of the fuelpump, and inside the outlet housing (3), the second diffusion fan (18)is provided to further diffuse the fuel.

The first and the second diffusion fans (17 and 18) respectively have aplurality of diffusion wings (17 a and 18 a) in the form of propellersand they are arranged to symmetrically oppose each other, so that thefuel can collide against the diffusion wings (17 a and 18 a) to formswirl and to be turned into particulates.

The diffusion wings (17 a and 18 a) are connected to the inner walls ofthe inlet housing (1) and the outlet housing (3), respectively, in orderto maximize the diffusion of the fuel in the inlet and outlet housings(1 and 3) while the fuel is colliding against the diffusion wings (17 aand 18 a).

The operation of the device according to the present invention will bedescribed.

When the device for reduction of exhaust gas and fuel economy of thepresent invention is installed in the fuel supply line of an automobile,the second ball (15) closes the hole for passing the fuel (14 a) of thesleeve (14) due to the magnetic force of the fourth permanent magnet(12) as shown in FIG. 2 a.

Then, if the fuel pump is driven by starting the engine, the fuel isintroduced into the inlet housing (1) by the pumping force of the fuelpump. Then, the fuel passes through the hole (8 a) formed in the centerof the first permanent magnet (8) and collides against the diffusionwings (17 a) of the first diffusion fan (17). The fuel which has beendiffused by the diffusion wings (17 a) passes through a gap having theinterval (t) formed between the hole (12 a) of the fourth permanentmagnet (12) and the first ball (13), and is turned into particulates.

When the fuel passing the gap between the hole (12 a) and the first ball(13) reaches the hole for passing the fuel (14 a) of the sleeve (14),the second ball (15) which has been closing the hole for passing thefuel (14 a) by the magnetic force of the fourth permanent magnet (12) asmentioned above, moves from the hole for passing the fuel (14 a) by thepumping force of the fuel to form a gap, through which the fuel furtherturns into particulates. The particulate fuel is then supplied to theoutlet housing (3) by passing the hole for passing the fuel (16 a) andthe fuel supply holes (16 b) of the cap (16). Finally, the seconddiffusion fan (18) further diffuses the fuel in the outlet housing (3),and thus the combustion chamber can conduct the complete combustion ofthe fuel.

The above description explains the state of idling before the driversteps on an accelerator.

When the driver steps on the accelerator, the first ball (13) which hasbeen inside the hole (12 a) of the fourth permanent magnet (12) moves inthe direction of supply of the fuel as shown in FIG. 2 b, due to thepressure difference generated by the pressure of the fuel pump, andpushes the second ball (15) which has been closing the hole for passingthe fuel (14 a) of the sleeve (14), so that the hole for passing thefuel (14 a) can be opened and simultaneously the hole for passing thefuel (16 a) of the cap (16) can be closed. By the closing of the holefor passing the fuel (16 a), the cross sectional area through which thefuel passes is decreased, but the pumping pressure of the fuel becomesincreased, and thus the fuel is rapidly supplied to the combustionchamber through a plurality of the fuel supply holes (16 b). More fuelcan be supplied to the combustion chamber in the same period of timethan in the state of idling where the driver is not stepping on anaccelerator.

Finally, the diffusion wings (18 a) of the diffusion fan (18) furtherdiffuse the fuel, and thus it becomes possible to combust the fuelcompletely in the combustion chamber.

The present invention has various advantages compared to conventionalfuel economizers.

Firstly, by the complete combustion of the fuel, a significant amount offuel can be saved and a remarkable effect of fuel economy can beachieved.

According to the test using the device for fuel economy of the presentinvention, an automobile was driven at the speed of 80 Km/hr using andwithout using the device of the present invention, and the fuelconsumptions under both conditions were measured and compared. The testresult showed the fuel economy effect of 15% to 20% when using thedevice of the present invention.

Secondly, by the complete combustion of the fuel, the output powerbecomes significantly increased and it becomes possible to reduce thenoise and vibration.

Thirdly, by the complete combustion of the fuel, generation of exhaustgas can be minimized and it can prevent atmospheric contamination.

1. A device for reduction of exhaust gas and fuel economy comprising: aninlet housing connected to a fuel pipe of a fuel tank; a first permanentmagnet fitted in the inlet housing and having a hole in the centerthereof; an outlet housing coupled with the inlet housing by couplingmeans at one end and connected to a fuel pipe to an engine at the otherend; a second permanent magnet fitted in the outlet housing to have thesame pole opposing the first permanent magnet and having a hole in thecenter thereof; a partition located between the housings to separatethem and having a hole for passing the fuel in the central thereof; athird permanent magnet mounted on one side of the partition and having ahole in the center thereof; a fourth permanent magnet mounted on theother side of the partition and having a hole in the center thereof; afirst ball inserted in the hole of the fourth permanent magnet andmoving back and forth to turn the fuel into particulates; a sleevemounted on the other side of the partition and having a hole for passingthe fuel in the center thereof; a second ball inserted in the hole forpassing the fuel of the sleeve and moving back and forth by magneticforce of the fourth permanent magnet, to turn the fuel intoparticulates; a cap mounted on one side of the sleeve and having a holefor passing the fuel in the center thereof and a plurality of fuelsupply holes in its periphery to supply the fuel to a combustion chamberwhen the hole for passing the fuel of the sleeve is opened by steppingon an accelerator; a first diffusion fan mounted in the inlet housing todiffuse the fuel; and a second diffusion fan mounted in the outlethousing to further diffuse the fuel.
 2. A device as claimed in claim 1,wherein each of the first and the second diffusion fans comprises aplurality of diffusion wings formed in the shape of propellers.
 3. Adevice as claimed in claim 2, wherein the diffusion wings of the firstand the second diffusion fans are respectively connected to the innerwalls of the inlet housing and the outlet housing.
 4. A device asclaimed in claim 1, wherein the first ball of metallic material insertedin the hole of the fourth permanent magnet keeps the interval (t) ofabout 0.05 to 1.0 mm with the hole.